/Engine/Plugins/Animation/MLDeformer/MLDeformerFramework/Source/MLDeformerFrameworkEditor/Public/MLDeformerEditorModel.h
Debug draw specific morph targets using lines and points. This can show the user what deltas are included in which morph target.
void DrawMorphTarget ( [FPrimitiveDrawInterface](API\Runtime\Engine\FPrimitiveDrawInterface) * PDI, const [TArray](API\Runtime\Core\Containers\TArray)< FVector3f > & MorphDeltas, float DeltaThreshold, int32 MorphTargetIndex, const FVector & DrawOffset )